The Allen F. Blocher Planetarium and 

The Arthur J. Pejsa Observatory

We will resume our summer public

planetarium programs:

June 18 through July 22,


The observatory will remain closed for the summer of 2021.
We anticipate resuming regular night observing sessions for the public
in mid-September 2021.

Both the Allen F. Blocher Planetarium and the Arthur J. Pejsa Observatory are located in the Science Building on the UW-Stevens Point campus.  The Science building (2001 Fourth Ave) is at the southwest corner of Fourth Avenue and Reserve Streets. 

The planetarium consists of a 7.3m diameter dome that houses a DIGISTAR LITE projector (installed in Spring 2020). 

In the summer of 2021, we will host a series of public planetarium programs in the interval June 18 through July 22. There will be two public planetarium programs (same show twice) every Monday, Tuesday, and Wednesday night, from 6-7 PM and from 7:30-8:30 PM, respectively. We will also offer two public programs every Sunday afternoon, from 2-3 PM and from 3:30-4:30 PM. There will be no shows on Sunday, July 4. Here is the schedule of full-dome shows:

Sunday - June 20: Phantom of the Universe - The Hunt for Dark Matter

Monday - June 21: From Earth to the Universe

Tuesday - June 22: Two Small Pieces of Glass - The Amazing Telescope

Wednesday - June 23: Back to the Moon for Good

Sunday - June 27: Out There - The Quest for Extrasolar Worlds

Monday - June 28: The Hot and Energetic Universe

Tuesday - June 29: Seeing! A Photon's Journey Across Space, Time, and Mind

Wednesday - June 30: Phantom of the Universe - The Hunt for Dark Matter

Monday - July 5: From Earth to the Universe

Tuesday - July 6: IBEX: Search for the Edge of the Solar System

Wednesday - July 7: Two Small Pieces of Glass - The Amazing Telescope

Sunday - July 11: Back to the Moon for Good

Monday - July 12: Seeing! A Photon's Journey Across Space, Time, and Mind

Tuesday - July 13: Phantom of the Universe - The Hunt for Dark Matter

Wednesday - July 14: From Earth to the Universe

Sunday - July 18: Two Small Pieces of Glass: The Amazing Telescope

Monday - July 19: Cosmic Castaways

Tuesday - July 20: The Hot and Energetic Universe

Wednesday - July 21: Back to the Moon for Good


We will restrict the number of attendees for a given show to 10 until Covid-19 restrictions will be more relaxed. Pre-registration is strongly recommended and can be done most easily by calling our office at 715-346-2120 during regular business days (8AM – 2PM) or by emailing to Please be prepared to provide your name, your choice for the day & time when you plan to visit, and contact info (phone or email) to allow us to reach you, if needed.  

Pre-registered participants will have guaranteed access and seats.

Walk-ins will be allowed on a first come, first served basis, until reaching the set limit of 10 visitors per show.

Note that masks are required for all people who are not vaccinated, for the whole duration of their presence inside the Science Building.

All our public programs are free of charge, however monetary donations are greatly appreciated.

Groups of five or more may schedule a special showing of any planetarium program by calling 715-346-2120 or by filling our online reservation request form. There is a cost of $25 per group for these special presentations.

The planetarium presents public programs through the regular academic year and during most summers. There is no charge for our public programs. Planetarium programs for groups (schools, scouts, organizations, etc.) can be arranged during our academic year and our summer sessions.  

There is a $25 charge per group for these presentations. Usually the planetarium is closed from 24 December until late-January and during the month of August.

The observatory is located on the fourth floor of the Science Building and houses a Meade 0.4-m telescope. The observatory is only open if the skies are CLEAR. Normally, the observatory is open on clear evenings Monday through Wednesday when university classes are in session. Usually this is from mid-September to mid-December and from late-January to mid May. Most summers the observatory is closed. 

The planetarium and observatory are closed during the University interim and break periods. For current updates please call the Planetarium/Observatory at (715) 346-2208.

These facilities are operated and maintained by staff in the Department of Physics and Astronomy at UW-Stevens Point.

Dr. Sebastian Zamfir is the planetarium and observatory director.

 The Allen F. Blocher planetarium is located on the second floor of the Science Building, by the Foucault pendulum, right above the east main entrance. Direct access is obtained through the east entrance.The Arthur J. Pejsa Observatory is located on the fourth floor of the Science Building and houses a 0.4-m (16-inch) Meade, computer controlled telescope, and is located on the roof of the Science Building, on its west wing. Access to the observatory is obtained by using the southwest stairwell in the Science Building and going to the fourth floor, room D402. Visitors are best advised to go to the third floor and follow the signs to the observatory by accessing the southwest stairwell. 

Parking spots for visitors attending our public programs are available in Lots D or E or along the adjacent Stanley Street. For more information please visit